Calculating machine



April 25, 1933. J. A. v. TURCK CALCULATING MACHINE 7 sheets-sheet 1Filed April 30, 1929 05.5 @..m Q m April 25, 1933. J. A. v. TURCKCALCULATING MACHINE Filed April '60, 1929 '7 Sheets-Sheet 2 April 25,1933. J. A. v. TURcK GALCULATING MACHINE 7 Sheets-Sheet 3 Filed April30, 1929 S Sw AWV mw wm. nHu

April 25, 1933. J. A. v. TuRcK 1,905,579

CALCULAT ING MACHI NE Filed April 30, 1929 7 Sheets-Sheet 4 Filed April30, 1929 7 ShetS-Sheet 5 April 25, 1933. J. A. v. TURCK CALCULATINGMACHINE Filed April 50 1929 7 Sheets-Sheet 6 April 25, 1933. J. A. v.TURcK CALCULATING MACHINE 1929 7 Sheets-Sheet 7 Filed April 50 MMM@particularly .Patented Apr. y l25, 1933 UNITED STATES PATENT 'fori-ica,manenl A fir. ".r'UnCx, orf'WiLMn'r'rnfILmNoIs, AssIGNon To FELT aHanu- FACTUBINQ COMPANY, on CHICAGO, ILLINois, A ooaPoaA'rioN orILLINOIS canCatarina MACHINE.,

application 'and april s, mammie mi. 359,262.

This' invention rel-'atesi'n general to -iinprovements in calculatingmachines. More the invention relates :to iinprovements in calculatingmachines of the multiple Order key-driven type' andespecially tocalculating,r machines of said type', 'that are alternatively operableby individualkeydrive, namely, key bykey, or-ke -set umversal drive,that is, a single mem er operating many key-set mechanisms, and that'include -an accumulator mechanism of greater "capacity than theykeyboard,such as to register a product of many figures more than A'.'thenumber of mechanisms, said accumulator being alternatively eitherstationary or shiftable for key-driven actuation or elseeitherstationary-or shiftable for key-set universal -Objects of the inventionare to providea `machines of the above noted type with4 full 'strokedevices that will lock all other orders vof the keyboard on a shortdownstroke or partial key stroke in -any ordinal column ot actuation,'as' shovvn vin Vmy prior copending 'applicationsSerial No. 654,874,filed J ul'y 31,

1923,v and- Serial No.' 107,527, filed May 7,

the keyboard, and leave the' column or col'- umns in'which .a partial orshort key stroke has been made subject-tocompletion of the partial keystroke, and that will lock said column'or columns when completion of thepartial -key stroke is finished; to provide said machines ivith devicesthatc'omp'el complete return of the keys .and their column actuatorsbefore another stroke' can be made thereby; to provide for theemploymentv of t said devices in machines of the above mentioned'type incooperation Witha'stop-bar .type-of mechanism in which digital controlis regulated by stop-bars engaging the manipulated key stems asdisclosed in Patent No.- 1,088,219' to Door E. Feltyto provide an'improved elastic key stroke motion over that 'shown and described inlmvabove noted applicationv SerialNo. 107,527; to providev a.

means for controlling the actuating -mecha-4 nism in their variousAdegrees of actuation during both their addingqand` non-addingmovements, thus'compelling fulll digital registiationfand return oftheactuating meclr kkanis`in,.that be employedvvith or without` a mechanismfor locking all orders of the-keyboard; to provide an improved lockinghmeans for vlocking the keyboard of a cal. culating machine uponmismanipulation ofv any one or -more keys thereof to provide an improvedmeans forcompelling a complete return of a depressed ke before it or an,

may be found to obtainin the structure and devices hereinafter describedand claimed.

I ny'the accompanying drawing?, forming a partof this specification'andsowin for .purposes of 'exemplification,. 'a re erredv form and `mannerin -vvhich the invention may be embodied and practices, but withoutlimiting the claimed inventionA specificallyv to such illustrativeinstance'or instances:

Fig.-1 is a top plan view of a calculating4 machine constructed' inaccordance with the 4present invention;

Fig. 2 isaright-hand sidevelevation ofthe machine; f-

Fig. Sis aleft-hand sideelevatiori of the 'machine;.

Figlt is a verticall sectional view of` the vmachineshowing-themechanism4 for ,one of thefordinal columns of kevsv in-anrighthand elevation, parts being broken away, and

other partsnotessentialto an understanding of the .present inventionbeing omitted for 'clearness of illustration;

Figg isan enlarged sectional elevational view showing the mechanism'immediately behind the mechanism shown in Fig, 4 in-its normal position,portionsof themechanism being broken away for clearne'ss ofillustration;

6 is anenlarged'sectional elevational View of the mechanism shown inFig..4*, but showing'parts of the mechanism thereof in positionduringfull depression of'a numeral v key and before such key starts in itsreturn up'stroke to normal position;V Y

Fig. 7 isa sectional elevational view of a part of the 1'nechanism,shown'in Fig. 4, on a larger scale 'and' showing parts of the mechanismthereof in position durin return upstroke of a previously full pressednumeral key;

Fig. 8 is a vertical sectional View taken on the line 8-8 of Fig. 1 atone of the extreme left hand sections ofthe machine showing themechanism for controlling the keyboard locking mechanism for key-set'operation of the machine and the new devices through anism sets thekeyboard locking mechanism during key-driven operation;

Fig.. 9 is avertical transverse sectional1 view taken onthe line 9'9 ofFig. 1 showing thecolumn actuator locking mechanism and key-set lockingmechanism which also acts to release the column-actuators of actulatorlocks;

Fig. l0 is a'pers ctive view illustrating the non-adding loc for keyaction under universal drive operation, anddevices for releasing theactuating-levers during action of the universal drive' v Fig. 411 is afragmentary, vertical, longitudinal, sectional view taken on line 1111 lof Fig. l, showing non-adding-lock as to keyv action under key setoperation, and also showing selective drive-setting device; and

Fie'. 12-is a lon ltudina-l sectional viewA showing the selectivedrive-setting devicev and the arrangement for locking the universaldrive4 against actuation operation while the machine is set forindividual-keydriven actuation.

In its present embodiment the invention is described lin connection withand as an improvement u on the machine shown, described and c aimed inthe above notedcopending applications of the present invenled July 31,1923, and Serial No. 107',527, filed May ,7, 1926, and. entitledCalculating machines. The novel-features of the present in which thepresent invention is embodied isalternatively operable by individualkeydrive, that is, key-bykey, or by key-set uni- .versal drive, that is,a single member operating many Vkey-set .mechanisms, and includes anaccumulator mechanism of greatwhich the above mentioned full strokemechtor, Joseph A. V. Turck, Serial No. 654,874,.

invention are, however, readily susceptible of4 scribed in saidco-pending applications and er capacity than the keyboard, such as toregister a product of many-figures more than the number of actuatinmechanisms, Said accumulator mechanism eing alternatively eitherstationary or shiftable for keydriven actuation or else eitherstationary or shiftable for ke -set universal actuation. In the machineo? the lpresent invention, the operator has the choice of either akey-drive or a key-set universal drive when performing-calculation,whether positively as in addition or multi lication', or negatively, asin subtraction or ivision. In performing mulltiple stroke calculation,whether posltively as in multiplication or negatively as in division,the operator may employ the individual key-drive with or without shiftof the accumulator "mechanism, orthe universal drive with shift of theaccumulator mechanism for the accumulation of each order or multipleAstroke factor.

The various instrumentali'ties which constitute the actuating mechanismfrom which calculative motion 1s transmitted to the accumulatormechanism are su ported by a frame mounted on a base 21 oi an enclosingcasing, said frame consisting of side skeleton plates 23 disposedbetween the various actuating mechanisms of the several orders 4of themachine and all tied together at suitable points 'by transverse tie rods24. The various orders of the actuating mechanism are stationary,-thatis, there i's no shift from order to order of the actuating mechanism.

In performing multiple-stroke key-set universal' drive calculation,shifting is effected by the carriage which supports the accumulatormechanism, as hereinafter described.

A number of columns of nine keys each are provided, a colu-mn for. eachorder of the machine. .Each column of keys25 corresponds with -a columnactuator and at-v tendant parts and constitutes a mechanism.

either for' driving the column actuatoran amount proportionate to thedigital value of the particular key 25 operated or for setting* andcontrolling the column actuator The keys of each column are numberedfrom l to be otherwise driven a like amount.

to 9 and complementally i for negative calculation from 8 to O-"in frontto rear order of the machine; the key at the extreme front is adapted toeii'ect or otherwise to control operation of the column actuatorthroughan arc substantially one-ninth of that produced by the operationof the key at the extreme rear of the machine, and upon depression of intermedially positioned keys, the column actuator is or may bemovedthrough various arcs respectively deter-` mined by the digital value ofthe intermediate keys depressed. Each key 2'5 is provided" with a stem26 extending down and bearing upon the corresponding column actuator 27for'key-driven actuation ofjthe machine. Spring mechanisms 28 similar tothose employed in the well-known coinptonieter machines are utilized forthe purpose of restoring the res ective keys 25 to vnormal independentlyof t e column actuators.'

There is acolumn actuator' 27 Qfor each ordinal column of nine keys 25of the machine, and each column actuator is preferably constructed inthe form of a bell-crank leverhaving ja long, horizontal arm'29, arelatively short dependingvertical arm 30 and being pivoted at thejunction point of said arms to the framework at the rear of the machineas shown at 31.- vThe liorizontal'arm 29 of the 4column actuator extendsforwardlyof-the machine and receives'tlie key-im ulse to actuate theaccumulator, when he machine is set for key-driven actuation. Pivoted at32 von a fixed shaft extending through and supported by the framework ofthe machineis an actuator sector 400 for transmitting the calculativemotion-of the column actuator to the ac' cumulator.- The ivoted sector400 is provided with a set o gear teeth 34 on its arcu- .ate peripheryand said teeth are adapted to mesh with ordinal gearslll forming a partof a ratchet mechanism interposed between it and a transmitting gear 114for actuating the transmitting gear 114. Cooperating with the ratchetmechanism' are the usuall stop devicesfor preventing erroneous opyeration, said devices including the spring actuateddouble armedback-stops 115 pivotroviding two pawls that function 'as aouble escape-Aally mounted 'at 115A and ment or pallet motion mechanism,and 'thespring actuated actuating-stop over-thro`w Vprevention pawl member 116that is pivotally mounted at' 224 on the upper end" of the 1 rear arm.3580i sector 400, and that is'prof vided with two arms 225 -and 226, thelast mentioned, arm being -not'ched at 2 27, so that upon completion ofthe lupward movement o the sector 400 the arm 225 is first engaged byparts .ofthe interposed ratchet mechanisml and slightly pulls the arm226 into, posit-ion with respect tothe ratchet mechanism. The stop l116has an arm 229 that engages a'pin 23() on the arm 35 to limit themovement of the stop- 116and a l cumulator mechanism includes thenumeralr @ages the member 116 at`232 and has its otlier' endfastenecd tothe arm ai'at 233.

The' accumulator key-set universal drive actuation) or shiftable bothfor key-set universal drive multiple stroke actuation or for .individualkeydriven multiple stroke actuation. The acwheels, and the Ainterposedtransmission gearing mechanism which receives direct mechanism isoptionally .either stationary with respect to the several orders of theactuating mechanism (both for individual key-driven actuation or for,incremental actuation from the column actuators and transfers it, to.the numeral wheels of the corresponding orders and also vreceives ortransmits indirect actuation from a lower order gearing to a higherorder gearing for effecting carrying of the tens from order to rder,whenever a numeral wheel of a lower order passes from the 9 point,whether in gear with the actuating mechanism or not. The carriagecomprises columns or orders o the accumulator-meca anism; The numeralwheels 124 for registering accumulationare each provided with the usualnine digits and vwiththe zero mark, which may be viewed through sight.openings 125 in the cover plate of the carriage. The numeral wheels ofthe-respec;

tive orders of the accumulator mechanism are mounted to rotate oncross-rods or fixed 4supporting shafts 126 supported by framework in the-c'arriage and each numeral wheel is provided with its operating gearl127 inmeshfwith a gear 128` mounted on aA parallel cross-rod 129. Forshifting' the carriage and its contained accumulator mechanism, thereare provided at its opposite ends -handles 162 so that the carriagemaybe. first swung upwardly on its sup ortingrod 120-'and' then shiftedtransversey on the stationary cas' 'ing of the machinev as required ormay be shifted by manipulation of knob 267 secured to a rod 264 providedat theleft--hand side of the machine and'adapted to shift the rods 272and120 either to the left or tothe right ofthe-machine depending uponthe direction of rotation of the knob 267 and the rod 264.

The shifting of' the carriage by means of the handles 162er knob 267effects lifting of the carriage to disentrain the accumulator mechanismfromm the ordinal actuating mechanism by gdisengaging the vgears 131from gears 114.; Such lifting `of the; carriage by handles 162er knob267 is not effective for zeroization since the usual locks .forpreventing the numeral wheels 'from returningto zero are not afiectedbymanipulation of the handles 162 andthe knob 267.

For zeroization, zeroizing mechanism, indi-.-

catedigenerally at 185 and more fully 'shown in -my aforesaid pendingapplications, is provided which' is effective, when the handle lever 185is pulled toward the fr ont'of the machine,- to liftthe carriage to.disentrain the -accumulator mechanism from the actuating mechanism andto hold the above men'- tioned locks for preventing the numeral wheelsfrom returning to zero out of operation thereby effecting zeroization ofthe numeral wheels.

In key-driven actuation, the column actuators are restored to normal,that is, the horizontal arms 29 of said actuators are lifted',-respectively by the key-arm-driven or no .movement at all of said columnactu ators as determined by the key-setting. 'It also forms a flexibleconnection for both depressing and restoring the column actuators tonormal in universal drive actuation'.A

The universal 4actuator functions as an abutment for causing thespring-tensioning that effects the ret-urn movement of the c'olumnactuators in key-driven actuation. It comprises .a universal key, lever,crank, or motive power, driven oscillatory'shaft 40 extendingtransversely of the main frame. Fixed to said shaft 40 so as to partakeof its oscillatory movement are universal actuator plate members 41which correspond ordinally with the column actuators-'27.V -It-isparticularly these plate'members 41 whichv constitute the abutments forthe spring-tensioning hereinafter referred to.

The dual flexible link mechanism of each column actuator andcorresponding universal actuator plate comprises an upper link mechanism42 and a lower link mechanism 48. The lower flexible link mechanism isarranged in pairs in position side by side, only one of the pair beingvisible in the view illustrated in Fig. 4, but one may be employed 'foreach column actuator. Said mechanism provides the spring-tensioningVwhich affords the power for the return of the' column actuator inindividual keydriven actuation. During such actuation, any tension inthe upper link mechanism is relieved in the tensioning of said lowermechanism, so that'the upper mechanism remains perfectly neutral inindividualkeydriven actuation and affords no resistance-- to the columnactuator movement. The 'said lower fiexible link mechanism 43 includes ahorizontally disposed coil spring 44 conf nected at its rear end to thestud 45. at t-he lowerend of the vertical arm 30 of the column actuator.Within the spring 44 is a ram 46 having a head 47 which projects beyondthe forward end of the spring 44.' The forward end of the springissecured to the head 47. In length the ram 46 is so roportionedrelatively to the spring 44, tiat,

when the rear end of the ram touches the abutment 45, the columnactuator is relieved of such spring tension. The head 47 is providedwith a slot 48 extending parallel with the ram body 46 and the forwardend of the rain is slidably attached to the lower end of thecorresponding universal actuator plate 41 by a stud 49 secured to saidplate, which projects transversely through said slotl 48. The up erflexible link mechanism 42 of each ordier is constituted of partssimilar to 4those of the lower mechanism 43, but is somewhat less inlength. The spring 50 is secured at its upper end, at 51, to a studlocated near. the rear end of the horizontal column actuator arm 29, andsaid s ring 50 is curved to incline forwardly and downwardly toward theupper part ofthe universal actuator' plate 41, being secured to the head53 of the ram 52 which'has a slidable connection with the plate 41 b thestudv 55 which rojects through the -slbt 54 in the ram head).

It will be noted that the upper and lower flexible link mechanisms 42and 43 are respectively located on op osite sidesof the pivotal axes 31and 40 ofpthe column actuator and' of the universal actuator, and'botlisaid link mechanisms have slidable connections, as hereinbeforedescribed, with the universal actuator. In individual key-drivenactuation the universal actuator vincluding all thel ordinalplates 41 isstationary, being in fact locked against l movement by a devicehereinafter described.

When the parts are at normal, the studs 49 and 55 are respectivelylocated at the forward and lower ends of the slots in the rain heads 47and 53. Upon depression of a numeral key 25, the horizontal columnactuator moves downwardly an amount proportionalwith the digital valueof the key depressed. 'Ths-mOVement ofthe column4 actuator turns theactuating sector 400 in a clockwise direction (Figs. 4 to 7) therequired amount for the incremental accumulative actuation, which occurson the reverse counter-clockwise rotation 'of the sector 400.

YThe downward movement of the horizontal column actuator arm 29 causes.avrearward movement of the depending column actuator arm 30 and thisrearward movement of said arm v stretches or tensions the spring 44 toproduce power for the'` return movement of the column actuator-'inasmuchas the ram 46`remains stationary. In this manner the spring 44 oftheflexiblel link'inechanisxn functions as the return spring for the coljumn actuator in individual key-driven actuation. Although the springaction of the return movement of the column actuator and the horizontalarm 29 of the column actuator,

upper {iexible mechanism 42 is opposed .n

to that of the lower exible link mechanism 43, the spring 50 of saidupper mechanism is not tensioned'in either thedownward or thusinterposes no resistance to the movements ofthe plarts'lin individualkey-driven actuation- T e entire upper ileXi le link mechanism 42movesbodily downward with sets the digitalcontrol and unlocks'thecolum'n actuator corresponding to its order for subsequent calculativemovement by the vuniversal drive mechanism-, the operation' of a numeralkey being merely an unlocking of an ordinal locking devicecorresponding'to the order .in which the key is depressedyascontradistinguis'lied from an ,actual calculative movement produced bykey-operation in Aindividual numeral key-driven actuation of themachina' When the machine is set to opn erate in key-set' universaldrive actuation, the

' column actuators in allorders of the machine l tuatorplates 41.

are locked against movement by an ordinal lockingimechanism and onlleased. by -a 'setting of one :of the correspoi'id-4 ing ordinal keys.The oscillatory movement of the universal vactuator` dplates 41 isemployed-first to depress an then to elevatel those column actuatorswhich have been re-" .leased from the ordinal locking mechanism lbyprevious key-setting. l

In the present embodiment of the invention, such oscillator@T movementof* the universal actuator is e ected by thelight touch. 'ot auniversal-keyg56 which o l crates 'I the universal actuator mechanism.

may, however, be effected by afhaiid lever, crank or motive drivenmeans. 'The universal key- 56 ism'ounted'on the outside of the' 'lright-hand-vertical casing plate atf the endA 50 -which when rotatedimparts, through ap-.

of a stub-shaft 57 which it rotates,gaiid vpro'priate connections, suchas those shown and described in my aforesaid copending applicationSerial No.- 107,527 first a counterclockwise and next `a clockwisemovement to the universal actuator shaft 40 (as viewed vin Figs. 1 to 7)and the series of ord'inal'ac- In other words, each single depressionand elevation of the universal key '56 is accompanied by a downward 4andupwa'rd oscillation of theiuniversal actuator single oscillation of'said plates 41 effects a single incremental actuation movement of theselected column actuators.

universal-key, lever, crank, or-

Y .those column' actuatorsareoperated whic Ahave been rel' uch operationof the universalactuator4 'mechanism4 actuator. locks 67.

yThese locks arerespectively pivotally mounted ona -pin 68 on said bar66 and theirupper free ends are' provided with locking notches 69 which,are projected beneath the horizontal arms 29 of the column actuators 'toprevent depression thereof, whenever the locks 67 have beensliiftedfpivotally toward -tlie left of the machine (towards the ri htas seen-Fig. 9) by setting the machine or key-set universal-key-drivenoperation. A.' A

lportion 214 of the base of the bar 66 isbent upwardly adjacent thevertical leg 215A of said bar, in such mannerfas toleave a guide spaceinto whichextendsa projecting por- Y vtion 216 of the lock 67, tomaintain said lock in true position. locks -isbent' in a directiontoward the rear 'of the machine at 217 and' said portion-217 is thenrebent toward the left of the machine, (toward the right Fig. 9) .toprovide a pivotallyA supporting portion 218 mounted on the pin. 68 thusproviding a double vbearing for the lock67. Eachordinal lock -67yiscontrolled individually 'byf its; corresponding ordinal lock control bar70, These bars 70 extend .from front torear in the variousorders of'the' machine and are loosely supported b front and rear rods 71, vwhichper- Y mit .the

ars to be swung. individu'all Aor inunison on airis parallel with theiren'O'th.

shape, portion (towards the .left Fio. 9) and this portion A portion ofeach of said I Each bar170 is provided with aldepending, arm 73 thelower end of which is folded U- to-provideapocket, by bending'a 21.9integral with the rear edge of .the arm towards the right of the4machine the'machine. This pocket incloses a pin 20 secured to the lock67 near the up- A per end thereof.' When vthe llower edgesof therespective bars 70 are swung in -unison towards-the left ofthe'machine,in a clockwise direction' (towards the right, ina'counter-clockwise'direction, viewing Fig. 9) by the mechanism orsetting the machine for key-set' universal-key-driven operation', theseveral locks 67, throu h the-connections 7 3, will befswungtoward Sieleft of the machine 'in a counter-clockwise -direction (toward the rightin a clockwise direction as viewed in Fig. 9), to move the .lockingnotches 69 intoengagement with the projection 221. of

"the .column actuator arms 29'. For this purplates 41. In universal-keyactuation, each pose each control bar 70 is provided with a .dependingarm 75 (see Fig. 12)"provded with a 'slot 76 that -receives the groovedportion 77 of a shift'rod 78 extending transiis i' -verselyof theframework. 'The shift'rod 78 is per end o a rocker arm 79. The lower endof said 'rockerarm is. pivoted at 80-on va bracket 81a. Projectingrearwardl from'- the' upper end of the rocker arm 9` is a roller 82.which forms the abutment for The control ke 83 is desi Akey-drive an'oted at 86 to the side skeleton plate 'of theshiftingthe rocker arm 79,either'toward the right or toward theleft of the machine, in responseto operation of the control key. 83. ated individual is provi ed belowthe top casing tpllate with a notch 84 that loosely receives e rear endof a walking beam 429. The centerof the walking beam '429 ispivframeworkand the front end of said beam is loosely mounted within asimilar notch 87 in the universal-key-drivecontrol key 88. The-notches84 and 87 are so located in thel respective control keys 83 and88that the walking beam 429 will elevate one key as the drivecontrol keydividual key-drive the Aupper notch 89 is located further toward otherisdepressed The-individual key- 83 is provided with an upper notch 89 anda lower notch' 90 so located that when the control key 88 is depressedthe notch 90 is in engagement with the roller 82 on the upper end oftherocker arm 79, and when the incontrol key 83 is depressed the uppernotch 8 9 is in enga ement with the roller 82. Fgig 12 the right of themachinethan the -lower notch 90.. When the universal-key-drive controlkey is depressed and the individual key-drive control key isconcurrently elevated, the positioning of the notch side of the machine(that is, tothe right of Figs. 9 and l2) to shift the several ordinallocks 67 into locking positions. This movement of the control bars'70'is accomplished by springs 91 'encircling the supporting rods l in' thevarious orders of the machine between each control bar and thecorrespondment of the key depressed the u I unlson toward the ingordinal skeleton plate and bearing on theV control bars in such manneras to ush their depending arms 73 toward the le t of the machine, thatis, toward the right-hand side of F ig. 9, to effect the movementof-the,

registry with t right Aof the machine engafged at itsleft-hand end bythe up machine.

universal-key-drive 9,0 nregistering with the roller 82 permits the,several controlbars to move toward the left jection 92,` as shown ineither for a s in connecting arms '73 in (that is, toward the left-handof Fig, 9 to shift all-of the ordinal locks 67 out of locking positions;The last described operationI effected by depression of the key 83sets-the machine for individual-ke -driven actuation, whereas thedepression ofv the key '88 sets the machine for universal-key-drivenactuation.

teir

A spring 222 is secured at one'endto the lower portion of the rocker arm79 and its other end is secured to the' framework ofthe The function ofsaid spring is to tend to against the individual-key-drive control key83 so as 'to reduce the pressure re uired of the springs. 9l`in shiftingthe rod 78 to key-set positlon;

pull such rockerarm 79'and its .roller 82 As hereinbeforeA stated,when-.the machine is set forkey-set -universal-key-driven actuation, thede ression of an' ordinal numeral key 25 unlochs the ordinal locks' 67in the corresponding order.A F orthis purpose each control bar,70 isprovided with aseries-conwhich respectively correspondto the column ofnine numeral eys 25 of the corresponding order ofthe machine. Eachnumeral Akey 25 is'pro'vided with a projection93 locatedontheright-hand-side of lits stem .26 and having a notch 94-whichreceives the correspondin projection 92 of the ordinal .lock control arwhen the key' is in normal' depression of the key .for keyposition. -Onset actuation the shoulder above the notch 94 engages the control barprojection 92, so that the 'downward movement of-fthe key vcauses thelower edge of the control bar to move .toward the right of the machinewith the result that the epending connection' 73 is also shifted towardthe right sideof the vstituted. of -nine depending projections 92 lmachine (toward the left of Fig. 9). to throw' the ordinal lock .67ofthe order correspond-` ingwith the key to inoperativeposition, therebypermittin .the universal actuator to effect a calcu ative. movement ofthe column actuator of that order. As the key 25 moves downwardly theshoulder above the notch 94 is positioned beneath the ro- Fig. 9,thereby holdin key-set position the key-set release ing the keydepressed until released either by mechanism or ashereinafter described.r

After the keys of the various selected orders have been set as abovedescribed the universal actuator mechanism may bc operated le actuation,as in addition calculation, or' oras many repeated actuations asdesired, when performing multiple stroke calculation.

When the desired calculative actuation has been completed, whethersingle or multiple stroke, the several selected numeraly keys 25, whichhave been set are restored to normal positions and the releasedcolumnactuator locks of their respective orders are l'ieposit'ioned for4locking the column" actuators. This is'accomplished by sal-lock releasemechanism orlbyr changing to individual key-drive and then rechang- Aingback to ke -set' universal-key-drive.

" Pivotally mounte 'right-hand side of the'machine'is a rocker.arm9'5theup receive one `o ljects rearwardly and. normally set releaseon a bracket 8112 at the r end of which is-slotted to the grooves' ofthe column actuator lock shift rod 78. A; roller 96 pro- 4from saidenters a' notch`971in the ke parts .remain 1n`normal,.orkey-setpositions. A 's depressed, its portion above the notch 9 7 forcesthe roller. 96 and -.the'upper end of the rocker arm'95 toward the rightof the machineso that the shift rod 78 is likewise moved toward theri'ght,

thereby .through the arms 75, shifting the depending arms 73 toward theri ht side of are 'permitted toreengage the notch 97 'g This ypermits.ing column actuator locks i'nglpositions. setting may' may bel employedfor correcting fin the key setting ofany column, and perthe machine(toward the left-o Fig. '9) to move all. the locks 67 to'their extremereleasing positions and the projectior`r92v away from the normal keys.whichthey have been.

so that any set. numeral keys to rise under the I actions of to normalpositions. When holding down' their springst the, key-set4 release key'98 is released its be effectedl in any column, or where a cipher ,isdesired, byoperating a columnar release as hereinafter explained.

There-'is also provided a` columnar re- -lease mechanism employed `forthe individlocks 67, for example' ual'column actuator when 4it isdesired torelease either .the column actuator lock releasing position,to release 'a numeralkey 25 which.A hasfbeen previously set in thatcolumn. This columnar release .mechanism an error mits a" new keysetting to be made in any column, -1f a. key has been previously set inthat column, without'making it necessary .key-sct release 4key 98.v

to' releasel the key setting in otherpcolumns, as would happen in -a-noperation of the Referring especially to Fig. 12, each control bar .7 0is provided at its extreme front end with a` horizontal shoulder 99 onwhich rests the lower end of the key stem 100 ofthe small co-v lumnarreleaseor cipher key 101. lWhen said key .101 -is depressed, theshoulder 99 is moved downwardly causing a leverage action to force thelower edge of the lockthe univerrocker arm 95 A ey' 98, with theresult'that 't e the settingA of any selected columnor to move thecontrol bar -70'to` its extreme bar 70 toward ltheright 4of the machine,torelease a numeral key A2linthe shoulder of which is retained beneath a'projection 92 of said :control bar Inasmuch as there are v.

.releasekeys 101 .for each column, the settin to 'individ al vcontroland v to resettin in any manner desired by the operator.

of any 'individual columnA issfubject l` theingeris removed from adepressed key 101 thefparts will .be restoredto normal position y the .srin s 91 correspondin tothe control bar 0 w ich has been shifted, by-said key 101 to -releasing position.

key-driven actuation'unlocks the universalkey.56afor the operation of'the vuniversal actuatonifWhen the' universal-'key drive ke' 88' isdepressed, the 'movement 'of thechine withdraws the Vrightfhand end 102of said rod from locking position in a hole or socket-103 larranged in-thepath of disc connected by rod 61 which is operativel 223 with.the'universa -key 56,' thus freeing the universal-key 56 for movement.This construction also-prevents setting. of the machine from.universal-key-driven to individual vkey-driven actuation, exceptwhentheuniversalkey 56 and disc 61 are in their n'ormal positions, since themovement of. the disc 61 away from the normal always brings the disc 61into the path of theshiftbar 78 covering the hole or socket 103 vand theshift bar .cannot be operated by thev -individualkeydrive? 'key 83, torelease' he column locks for individual-keydriven operation 4of* theactuating mechanism, or b, the key-set release key 98. Whenthe isc 61 is1n normal ositon, the

'universal-key 56, shaft 57 an 'associated parts will be locked againstoperation by of the .machine for individual key-drive, since lthe end102 of the shift bar 7 8 enters the socket 103 and is' in the path ofthe disc 61 to prevent oscillation of the' disc 61. 1

As hereinbefore stated, each complete dei pression .of the universal-key56 4produces first a 'counter-clockwise 'movement' and next aclockwise'movement of the shaft 40 ,(Fig. 4) and ordinal universalactuatorV plates'dl. Those column actuators which have not beenset foruniversal-key-driven operations are locked aga-inst movement .by theircorresponding column locks 67, but in the various ordersin whichkey-.setting has Y The setting ofthe machine for universal- I .shift rod'l78jtoward the left of the ma- A.

taken gplace, the respective column actuator 'i tory motion of theplates 41 in all orders, although column actuators have been set forrelatively variable movements and in some orders, as required by theexample to be performed, no setting of the column actuators may havetaken place at all. Moreover, this operation is accomplished with aminimum resistance tothe movement ofthe universal-key 56, and, in fact,the resistance to universal-key-drive movement is inversely proportionalto the digital value of 'the .key-settin in the various orders and tothe number o orders set for operation,`so that the greater the digitalvalue of the factor set-up on the key-board, the less becomes theresistance. 4This is accomplished by releasing from all tension thesprings-44'of the lowerV dual flexible link mechanisms, so that noresistance is imparted by said springs 44 to either the downward or..the upward movement of'the column actuator'studs 49, and by'releasingfrom tension the springs 50 of the'upper flexible link mechanisms 42 solong as the corresponding column actuators are moving with theuniversal` actuator plates 41 in either direction. This operation is asfollows: On the counter-clockwise movement of a universal actuator plate41 (Fig. 4), the upperflexible link mechanism' 42 pulls down with saidplate 41 the A'horizontal arm. 29 of the corresponding column actuator,if said actuator'has been previous,

. ly set by the depression of anumeral key 25. There is no stretching ortensioning of the spring 50 so long as vthe arm29 is mov.h ingdownwardly, and, inasmuch as the stud 49 is traveling in the slot 48 ofthe ram of the lower flexible link mechanism 43, there is likewise nostretching ortensioning of the spring 44. When, however, the downwardmovement of the column actuator arm 29 has been completed to effect therequired incremental :accumulation and said 'column actuator arm hasbeen arrested bg the digital stop device, the spring 50 will e stretchedor tensioned proportionally with the revsistance to the downwardmovement of the column actuators, during the oscillatory motion ofplates 41, the springs 50 have merely a minimum load to carry indepressingcolumn actuators and thugsthe tension derived from suchactuators as depression is reduced lto a minimum.' If

its column actuator p ate 41 -109 corresponding to the ,nearest to saidkey and'the stop corre- During the .away- .keys 25 have a relatively arelocked. against there has been no key-setting of a column actuator inany order of the machine, the

horizontal arm '29 is held against movement' by its corresponding columnlock 67 and the tensioning of the spring50 of the corresponding exiblelink mechanism will commerce at the beginning of the clockwise strokeofV theuniversal actuator plate 41,I and the return movement of'said-plate 41 allows the tension ofds ring 50 to` pull back 52 intonormal elevated position.

The digital stop or 'control device op-4 erates` to insure accuracy ofmovement of the column actuators in transferring 'their incrementalaccumulations to the accumulatormechanism, whether the machine beoperating-.in individual-key-driven actuation or in key-set.universal-key-driven actuation. Pivotally mounted at 406 on a lever 403mounted. onl

the adding sector 400 of each column actuator is a digital stop bar 105which extends .to the front of the, machine and has its front endpivoted at 1 06 to the top of'a rockerarm 107 the latterbeing'pivoted ona cross-rod' 108."

jections 109 respectively corresponding to the column of digital ornumeral keys ofits -corresponding'orden' with the exception of andtheram.

a hub 402 adjacent.

The said bar105'is provided-with, a series of eight stops or pro-l thenine key 25 and adapted to arresttheA rearwardmovement of said bar bythedepression or setting of a key 25. The nine key' and the movement. ofthe sector 400 corresponding thereto represents the extreme movement ofsaid sector, and such movement is preferably arrested'by a fixed Q stop109a attached to the framework, al'

though, if desired, a further stop 109 for the nine The -stops orprojections 109 are located at different distances in front of the keyswith which they respectively co-ope'rate, the-stop l key being thespondiii to the, 9 ey being the farthest en a key' 25 is actuated inindividual-key-driven actuation or set for uni- Versal-key-drivenactuation, the adding sector 400 of the4 corresponding column may .movedownwardly until the bar 105 has shifted the corresponding stopintoengagement with the key depressed,wh ereupon the movement of the sector400 is arrested.

ey could be provided on the stop bar.

In individual-key-driven actuation, the

long motion, 'as

hereinbefore explained, in accordance with their digital values, but inkey-set actuation the several -keys 25 of each order have a relatively.short movement, both downwardly and upwardly, notwithstanding theirdigital values. The digital-control mechanism adapts the same series ofstop lugs 109. on bar 105 toA either the movement of the keys in it isnecessary that the stops 109 on bar lO be differentially spaced from therespective keys with which they cooperate.

In order to prevent accumulative action upon setting-up fthe keys, whenthe machine is set for universal-key-driven operation, there isprovided. a keyboard non-adding lock orkey-set action; At the forwardend of the machine there is provided a trans-4 versely extending,pivotally mounted bar 283 provided with (see Figs. 4,8 and 10) an arm284 for each order of the machine, each of said arms being pivotallysecured to an arin i 285 of individual non-addinglocks 2.86 by a fators,

tral curved surface 295 which maintains the these stop lugs 293 slotand' pin connection. non-adding locks are upper ends 293 forming astoplug so that each stop lug is immediately under -the free' end of'itsrespective column actuator 29.

A spring 287 is secured to an arm 288 that y is fastenedv to the bar283, and the other end of the spring 287 is secured to a non-add releasedevice 289. This spring tends to hold the lock-bai', 283, andlocks 286,in position to prevent depression of thefree ends ofthe columnactuators, when the keys 25 are being depressed while the machine is setoperation, and this spring 287 also tends to elevate the opposite end ofthe device 289. To a depending arm 290 of the release device 289 ispivotally secured a push-rod 291 that has aslotted connectionv withafstud '292 on said bar-arm 288. Upon setting of the' keys,

vthe locks prevent depression of the columri- Y actuators, but when theuniversalkey 56 is depressed the rod 223, whose rear end is con-1 nectedwith the key 56, rotates the pivotally mounted disc 61 toward the frontI of the machine and 4thereby causes the dollyroll, 297 to ride a camsurface 294, which forces the rear end of.` the release device 289downward and moves the bar 283 about 'its' pivotto swing the locks 286and from beneath the free ends. of the column` actuators just before thestart of the down-stroke of the column actuthen the dolly-roll ridesalong a neulocks slightly out of the pathof the free ends of the columnactuators until the column actuators complete their up-stroke. As y theuniversal-key 56 and the column actu-- vupwardly ators are elevated, thedolly-roll 297 Arides on-the neutral surface 295 vand does not rideoverthe'cam 294 unt-il'the as determined by the value of the digital eyoperated, whether -in' universal-key-drive or individual key-drive,

crank, or motive power, driven The individualr bent to the left attheir' set for keystroke, and for cont-rolling the .actuating free endsof the column actuators are abovel the stop lugs 293 of vthe locksv286.v

rWhen the 'machine isset for individualkey-driven actuation, suchnon-adding locks arenot required.` -Mechaiii'sm is provided `to renderthe non-adding locks ino .-1

erative,'wlien the machine is set for in 1- ,vidual-key-drive, erativelyconnected with the walking'beam 429, said bar having a .slottedconnection 'with a stud 300 on an arm B01-ofthe non- Such is, in briefoutline, the construction and operation of the vcombined key-drivenmechanism and. key-set universal key, lever, mechanism of the abovementioned co-pendin' applications. ItA will be understood tliat thesemechanisms are associated with j various other mechanisms, for instance,various stop mechanisms and carry. mechanism lto control theaccumulatorl mechanism contained within the shiftable carriage. I

The present invention comprehends provision for the employment inmachines o the above describedl type of features, shown and 'describedin United States Patents 992,- 950; 1,028,344; 1,066,096; 1,072,933;1,088.,-

and 1,110,7345-comprising full stroke mechanism which will lock thekeyboard or all of the columnsof the keyboard against operation inAevent of, an error or short stroke, and for controlling ,the actuatingmechanism of the machine in its variable degrees of actuation, thuscompelling full digital registration and return of the actu'- atingmechanism. The present invention, however, contemplates a mechanism foraccomplishing these results in which the lever antenna-feature shown insaid patents for setting the locks is dispensed with, and in which afull strokedog device operating both forwardly and reversely is employedto control the actuating mechanism in its variable degrees of digitalactuation, thereby full digital registration' and rethrough atrans-columnar device to trip the keyboard non-adding locks, provided inthe vmachine of my aforesaid copending application Serial No. 107 ,527in event of a par- `tial downkeystroke during individual-keydrivenoperation of' the machine. l

To alleviate thev shockA normally received -by the lingers of an.operator, during indi- 'vidual key-driven bperation', or to theuniversal actuator mechanism, during universal drive operation, when theAactuating comprising a bar 298 opios iso

ping action to take place justbefore thevdigital movement of theactuating sector 400 has -been completed through the use of an elasticconnection of the digital ystop bars 105 with the actuating sectors 400and a positive connection o the actuatingv lever 27 with the actuatingsector 400.

Referring to Figs. 4 and 7, when a key 25 is depressed, and the machineis set for in-' dividual-k'eydrive, it depresses its column Y actuator27 which draws its actuator sector '400, that is attached by link1401 tothe actuator 27, downward with it, and its stop barl 105 comes incontact'with the key stem26 of the 4depressed key 25.' The -actuatingsector 400 is pivoted 4on shaft 32 by a hub 402 integral with andforming. a part of the sector 400. Mounted on the hub 402 and 'adjacentthe sector 400 is a lever or arm 403' having its outer or'free end`flexibly connected with the sector 400 by a in 404 fixed on lever 403and operable' wit in a short slot 405 of said lsector 400, to allowlimited movement of sector 400 independently ofthe lever 403, and havingthe same outer f end' positively connected with the stop bar y30 105 bymeans of a pivotedstud 406. Normally the pin 404 engages the rear end ofthe slot 405 in the actuating sector 400, as' shown in Fig. 5, and ismaintained there by means ofaspring 407 which acts to hold the lever'403and the sector 400 in said re.- lation and until a stop lug l109 of thedigital control bar 105 comes in contact, with adepressed key stem 26when a key 25 is de- -1 pressed during actuation-of the machine as dstem 26, the lever 27,

will be later described. When, however, a stop lug 109 of the d igitalcontrol stopbar 105 comes vin contact with a depressed keyr pullingdownwardly on thelink 401, positively connecting lever 27 with sector400, tends to'separate the'actuating sector 400 from the lever 403,

stretching the spring 407, until the pin 404 cornes in contact with thefront end of the slot 405 and completes the stopping of the.

column actuator 29 and sector 400, as shown in Fig. 6, thus producing anelastic motion just prior to the end or completion 'of the -key stroke,and cushioning during such spring stretching the shock of the sudden4stopping of the downward movement of the key 25.

Pivotally mounted at `408 on the sector .4400 is a four-armed dog, ltwoarms of which carry detents'409 and 410, respectively; the

detent 409 coactingjwith theiratchet teeth of the ratchet plate 411, asshown in Fig.

45, by falling over the ratchet teeth as the actuating sector 400 isswung rearwardly under key actuation.v To maintain the detent 409 incontact with the ratchet4 teeth 414 exerts cent to and to the right 4ofthe a roll 414 on the arm 415 of the four-armed l dog; 'and ismaintained in contact with said roll 414 .by means of the spring 407,which is attachedlat one end to an ear 416 on the cam lever 412 and atthe other end' to the actuating sector 400 by pin 417 Thustension of thespring 407 causes an upward swing of the-cam lever 412 .on its Ain 413,which in turn urges the roll 414 orwardl andthe detent'409 upwardly toengage te ratchet teeth of the ratchet bar 411 as long as the -roll 414is'in position with respectto camlever 412 as shown in Fig. 5,and'incidentally -as long as spring 407 holds the sector 400 in relationto the* armed dog is drawn rearwardly by the downward swing of thelsector 400 drawn over the ratchet teethv and the roll pressure againstcam lever 412,l forcing Ait slightly downwardly against the tension ofthe spring 407, but as the4 detent 409drops off the the cam lever 412or'cesthe detent 409 to the bottom of the next tooth, depending on thedigital value of the key '2'5 depressed, that is, if a detent passes'over only afsingle tooth of the ratchet plate, if a 27 key is depressedl to which. it is pivoted, the detent'409 of the dog is4 point of aratchet tooth,-

the detent passes .over two teeth, if an i l 8'key is depressed thedetent' 409 passes over eight teeth, etc. This action continues untilthe stop bar 1 05 isarrested and held against further movement by adepressed key 25. When the stop bar 105, and consequentlyV the lever 403and cam lever'.412, is so arrested, the furtherl downward movement ofthe sector 400, and consequently -the four-armed dog and its pivot pin408, sepa- 'rates the sector 400 from the lever 403thus drawing the roll414 rearwardly over the pyramidal camprojection of the cam lever' 412until in engagement with the opposite incline 'of the pyramidal caniprojection which tilts'the fourarmed dog so that thc rear detent 410 isthrown partly upwardly 'as shown in Fig.'6. When the depressed key 425is released, sector-400rises slightly until pin 404again retakes itstion in the slot 405,'a'nd, as the'roll 414 has been drawn over to theopposite incline of the pyramidal hump of the cam lever 412,

this action tilts detent 410 further upwardly until .it engagesa ratchetplate 418 adja- 411. Under continued release; and upward movement of thekey 2 5, the detent 410 will fall over the ratchetteeth ofthe ratchetratchet plate normal posi- 418 as the sector 400 and column vactuator 27returns under the s ring action of spring The pressure e ect of the camlever 412 on the roll 414 of the four-armed dog device gives, during theupward movement of the sector 4002 the same action to detent 410 as thatdescribed in connection with detent 409 and. ratchet plate 411, exceptthat the direction of forces of one are reverse to that of the other. A

The ratchet plate 411 is for full stroke action on the downward strokeof a key and prevents return of the sector 400 andleverh 27 until thedepressed key has made a complete stroke, andthe ratchet plate 418 isfor full stroke on the upstroke of a key and prevents re-depression of akey that has been fully depressed before it makes a complete uastrokeafter such complete depression.- s the ratchet plates 411 and 418 larein different planes, the detent 409 projects to the left to engageratchet plate 411,

while the detent 410 projects to the right to engage the ratchet plate418. Ratchet plate 418 is rigidly mounted on shafts 115 -and 419, thusany rearward action ofthe dog detent 410 would be blocked, preventingany reverse action of a key 25 before com-.

plete return to normal, as lthe detent 410, in engagement with thelratchet teeth of plate 418, will not allow sector 400 to be depressed.

As the sector 400 and four-armed dogjdevice thereon near their normalhigher -position, an upwardly projecting arm 408e onthe dog engages apin 4086, fixed in the ratchet plate 418, just before the sector 400reaches normal. When the pin `4081) is en'- gaged by the arm 408a, arm408a is urged rearwardly causing roll 414 to be thrown to the angleofthe pyramidal hump of the" lever 412 and again bringing thedetent 409into engagement with its ratchet plate 411,

thereby effecting a reversal of the dog forv another down key-stroke. 1

Referring to Fig. 5, the ratchet plate 411 is pivoted at its rear end toa swinging arm- 420 and at its front end to another swinging arm 421,the rear arm being pivoted'to the shaft 115. and the forward swingarm'being pivoted to the shaft 419. In 'order to keep the `ratchet plate411 in a setl position as the detent 409 of the four-armed dog is drawn'over its ratchet teeth on 'a' down stroke of a key 25, a stop arm 422is providedv to engage the eccentric stop bushing 423 that -also acts asa stop for the normal position of sector 400. Another stop arm 424 isprovided on the ratchet plate 411 in event of the release 'of a key 25on a partial down stroke. Slight movement of the plate 411 is producedby the backward pressure of the sector. 400 through the detent 409 ofthe four-armed dog device, and when such movement occurs, the forwardswinging arm 421 swing forwardly with said plate, carrying with it itsdownwardly projecting arm 425 which is'provided with a vand pinconnection, a lin rear end'pivoted to an arm 438that is fast bent lip426. lExtending transversely of the machine from side to side, and justat the rear ofthe 9 keys is a shaft 427 that is journaled in theframework and that is provided with arms 428 so arranged thereon thatthere is one for e-ach ordinal column of keys situated in position to beengaged by the bent lip 426 of the swinging arm 421 as the ratchet plate411 of their respective orders is pressed rearward iny event of apartial down key-stroke'of a key 25 in said orders. ;Thus, in the eventof a partial keystroke of a key 25 inA any one or more orders of themachine, the shaft 427 will be rocked in an anti-clockwise directionas-viewed in- Fi s. 5,6 and 7..

eferring to Fig. 8, the walking 'beam lever 429,' that is operativelyconnected with individual-key-drive key 83 and theuniversal-key-drive-key 88, is connected with the. link 298 by anindependent third arm 430.. 4pivoted on the shaft 86 and to the link298.

Normally, the arm 430'is held in position with respect to the beamlever'429 to oper- .ate therewith. For so holding the arm 430 in suchposition, there is provided a latch 431, ivoted to the lever 429, whichengages the'right angle lip 432 of the lever 430 and provided with adownwardly projecting arm 436 to which is attached, by means of a slot437 having its to the left-hand end of the rock shaft 427.

When the individual-key-dri've key 83 .is

depressed, the upward swing of the forward end of the beam carries thelatch 431 with it, l

which .arm under tension of spring 433 carv ries the lip 4 32 and itsarm 430 forwardly toward the frontof the machine. In so doing, the link298, being'fulcrumed at 300 and pivotedA to 'arm 430, .straightens out,lthus pressing lever A301 downwardly to' rock shaft 283, thusthrowing-all of the lock levers 286 -into position so that their bentlips 29.3 are out of engagement with the column actuator levers 27allowing the column actuator levers27 to be freely depressed. In eventof a partial down stroke and release of a'key 25, the upward pressure ofits sector 400,

throughl detent 409 moves plate 411 slightly forwardly swinging arm 42-1forwardly with it. Such movementof arm 421, through arm 425 and lip 426,rocks its arm 428V and lshaft 427 counter-clockwise (viewingFi'g. 7 Thismovement of shaft 427, through arm 438,'draws the link 437 rearwardlyofthe machine 'which' pulls the downwardlyprof jecting arm 436 of thelatch 431, thereby re- A 1 leasing the .latch 431 from'the bent lip 432li of the lever 430. The lever 430, being loose Ylatch 431, doubles upunder pressure on the arm 301 of thespring- 439 attached t'o the lypi'voted on the shaft 85, forms a-pair of togvle-links with the link 298when key 83 is epressed, land, when released from the lever 301 and tothe framework at 440.

' When the arm 430 and lip 432 are released from the latch 431 by therearward movement of-the'link 437`,' just above described, the. spring439 pulling on-arm301l doublesI wardl -of the machine and under the'frontI end o4 -all of the column actuating `revers 27 that are not helddown by a. key or by the ratchetmechanism Vplatev 411,'thus 'locking allofthe levers 27 Aa ainstv additive actuation 'e xcept the one epressederroneously. Upon -correetdepression orzcompletion of the stroke of thecolumn actuator 27 and sector .400 rise-as is thecase when the keys'arelcorrectlyv manipulated, thus' freeing the mechanism in' this' respectfor further additive accumulation. But when` the column actuator 27rises upon A correction of the mismanipulated key stroke,

. arm 284 until the actuator v 27 passes above' the li'p 293 at'whichtime pressure of springs the end 296 of the column actuato'r27 wipes thelip 293 forwardly which presses the arm 285 downwardly` for relativemovement, through a slot and pin connection, with its 439 and 287,through arms 284, the. slo'tand pin connection,and arm 285,' causesthelock 286 and lip 293 to retake their locking'posi-- tion beneath thecolumn actuator 2 77 thus completing the locking ofjthe entire key-vhoard. y

To limitthem'ovement' of the toggle lever "430 asitsw-ings rearwardly inthe doubling L up of' the toggle under the' influence .of

` lever 430. This to give movement v the universalkey 88-is depressed.

spring439, an extension arm 441 is provided on the lever 430 forengagement with a ,tie rodf` bushing 442 that holds the framework of themachine in spaced relationship. A pin'443, fastonthe walking'beam level'429, is provided for engagement. with 'the lever 430 to act 'as a-forward stop for the pin, 443 is' also employed to the lever 430whenever them and partially depressed key,the four-armed dog .device-1sreversed andthe f carrying .latch 431 upwardly locked, aftermismanipulation and correction of a key 2 5, as above described, thekeynection of link 437 with arm 436, so that the,

latch "431 may again drop, under tension' of spring 433,-into latchingposition lwithits arm.434 against stop pin- 435. Under theseconditions', however, the latch will not eilgage'the lip 432. of the togle lever 430, be-

cause the lever 430 is sti 4in its rea'rmost position from the doublingup of the toggle.

Therefore, the universal-key-drive key 88is 'first' depressed andthen'th'e individual keydrive ke' 83'1`s depressed to clear thekeyboa-rd o the locks 286, and to restore the mechanism for further-individual-key-driven operation. The initial depression of theuniversaldrivekey 88 causes the' front end of the walking beam lever 429to rock downward and the latch 431 to swing rearwardly until it latchesover the bent lip 432 of the ,toggle lever 430. The subsequentdepression of the individual-key-drive key 83 causes the front end ofthe walking beam lever 429 to rock upwardly and the latch 431 to beswung toggle lever 430.-'v The forward swinging of the latch 431 andtoggle lever 430, by reason of the latching ,of the lever 430 to thebeam 429 as-ixed connection through pin 443 and 'latch 431, causeslevers 430 and 298 to make up again as atoggle to throw and to hold thelocks 286, through arm 301, bar 283 and arms 285, out from under theactuating levers 27, thus clearing the keyboard for further individualkey-.driven operation.

When the keys 88 or 83 are depressed for converting the machine from onetype of operation to the other, and there has beenno 'setting of thelocks 286 by mismanipulation .of a key '25 during individual-key-drivenoperation, the beam 429, latch 431 and lever arm 4 30 move as a unit andthe latch is not released from-the-lip 432. For instance, duringdepression of key 88 the forward end of beam '429. moves downwardlycarrying with it latch 431 and pin 443. Pin' 443 presses lever -arm 430rearwardly and latch 431, through tension of s' ring' 433, holds leverarm 430 to pin' 443 uring the downward ,movement of key88; duringdepression of key 83 the rearward en'd ofv beam 429 moves downwardly andthe forward end upwardly latch,l-i1nder tension of spring 433, holdinglever arm 430 in engagement with pin 443 and carr in the lever arm 430 fd1 When the keyboard has been completely, y g orwar y The invention ashereinabove set forth is orwardly carrying'with it the third arm of'with it, the

embodied in a particular form` but may be variously embodied Within thescope o the claims hereinafter made- I claim:

l. In a calculating machine, in combination: ordinal actuatingmechanism; keys therefor: universal actuator means therefor operableupon setting of said keys; -ineans for 'selectively operating saidactuating mechanism by key-set universal actuation `and by directkey-driven operation; locking devices for locking the keyboard againstkey depressionthat would operate the adding mechanism upon setting ofsaid keys durin key-set operation; means operable by said universalactuator-for releasing the keyboard of said locking devices and devicesoperable under direct key-actuation to set said-keyboard locking devicesin event-of a partial key-stroke to .lock all other columns or orders ofthe actuating mechanism against actuation until said locking deviceshave been cleared.

2. In a calculating machine,'in combination actuating mechanism operableby direct key actuation and by key-set actuation; keys for driving andfor setting said actuating mechanism.; shiftable-meansl adapted to beshifted into position tor key-set actuation, said means comprisinglocking devices for preventing movement of the actuating mechwhile said-.means is shifted into position; and devices anism-by direct keyactuation operable under direct key actuationto set said lockingdevicesin event of partial key strokes during direct key actuationoperation of the machine.

Ina.- combined key-drivenand key-set operated calculating machine havinga board of keys for driving and for settinga'ctuating mechanism in saidmachine and having keyboard locking devices for locking the keyboardagainst accumulative manipulation, in combination: devices 'ada ted forcompelling full key-value-stroke o the ac.-A

tuating mechanism under-both, key-driven and key-set operation andadapted or'setting said keyboard locking devices in event ot' a partialdown keystroke, under key-'- driven opcration, to lock the rest of the'keyboard against manipulation.

il. A combined key-driven and key-set operated calculating 'machinehaving a board of keys ordiiving and for setting actuating mechanism invsaid machine and having keyboard locking devices for lock- 'ing thekeyboard against accumulative manipulation, in combination: -devicesadapted for compelling full key-valuestrokc of the actuating mechanismunder both key-driren and key-set operation and adapted 'for settingsaid keyboard locking devices iirevent' of a partialfdov'vn,key

stroke, under key-driven operation, to lock the' rest of thekeyboard-against-.manipula-` strOke, under key-driven operation,

the rest of the keyboard against manipution; and meansvfor clearing theke board of said keyboard locking devices at t e will of an operator.

5. In a combined key-driven and key-set operated calculating machinehaving a board of ordinal columns of keys for driving and for settingactuating mechanism in said machine and having keyboard locking devicesfor locking the keyboard against acdevices in event of a partial down.

keystroke in the same order therewith may beV effected.

6. In a combinedl key-driven and key-set operated calculating machinehaving a board of ordinalA 'columns of keys for driving and for settingactuating mechanism in ,said machine and having keyboard locking devicesfor' locking the keyboard against accumulative manipulation, incombination: devices adapted' for compelling full key-valuestroke of theactuating mechanism under both key-driven and. key-set operation andAadapted for setting said keyboard locking devices in event of a partialdown keyto 'lock lation; and'devices ior compelling a completel returnon the upstrokev of each'of the keys of said keyboard before another kestroke in the same order therewith may e effected.

7. In a calculating machine, in combination key-driving mechanism andkey-set mechanism for actuation of adding mechanismfordinal addingmechanism set'in niotion by either of said mechanisms and operable witha downstroke and an upstroke; accumulator' devices for accumulating theadditive degrees of actuation of said a ding mechanisms on upstrokesthereof; means connected with said adding mechanism to prevent" anyadditive' tol be transmitted to said accumulator mechlocs iio'

lll

degree of actuation anism from the individual. orders of the laddingmechanismv until a full downward stroke of the value o the keys struckor set in the respective orders has been accomplishedin the individualorders. 8. In a calculating machine, in combination key-'drivingmechanism and key-set mechanism for actuation of. adding mechanism;ordinal adding mechanism set in motion by either of said mechanisms andoper-

